Pumping machinery.



1.1. BECKER.

PUMPING MACHINERY.

APPLICATION FILED OCT. 26,1915- Patented Oct 24,1916.

2 SHEETS-SHEET I.

l; J. BECKER.

PUMPING MACHINERY.

I APPLICATION FILED OCT. 26. 1915. r 1,202,152, I Patented Oct. 24,191

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K. bzfgfiww. INVENTOR. I gA)Z/J I IIIIIIIIIII lll lllil] WWW 6 ATTORNEY.

. UNITED s'rArEsPATE T OFFICE.

JOHN J. BECKER, OF LOS AN GELES, CALIFORNIA.

PUMPING MACHINERY.

To all whom it may concern:

Be it known that I, JOHN J. BECKER, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and ular to a mechanism for operating a double acting plunger pump.

It is an object ofthis invention to con struct an apparatus whereby the walking beams each carrying a floating gear eccentrically mounted intermediate its ends, are vertically reciprocated. The forward ends of the outer beams are connected together by means of a yoke which operates the outer plunger rod while the intermediate beam is connected at its forward end to the inner plunger rod. The rear ends of said beams are provided with segmental gears which are in mesh with a stationar gear rack, the curvature of the segmental gears being designed in such a way that the forward ends of said beams are caused to vertically reciprocate in straight lines.

This invention relates to pumping machinery and more particularly to mechanism for operating a double acting plunger pump.

Another object of this invention is to provide a series of eccentrically mounted oval gears actuating the beams whereby a simple and efiicient construction, positive in its operation, is provided, and the power 1s evenly distributed, avoiding jars and stresses in the various parts of the apparatus.

These and other objects of the invention will appear as the description proceeds and will be pointed out in the appended claims.

The present invention is an improvement of the apparatus covered by my copending application for pumping machinery, filed June 5, 1915, Serial Number 32333, which claims the features common to the present and said copending application.

In the accompanying drawings which form a part of this specification I have shown a convenient and practical embodiment of the apparatus and in which is illustrated the invention, in which I 1 Figure l is a side elevation of the pumping mechanism, as seen taken upon the line 11 of Fig. 2. Fig. 2 is a top plan view as seen looking in the direction of arrow 2 in Fig. 1.

Specification of Letters Patent.

Application filed October 26, 1915. Serial N 0. 57,953.

Fig. 3 is a detail of one of thewalking beam yokes. Fig. 4 is an. edge view as seen looking in the direction of arrow 4 in Fig. 3. Fig. 5 1s a fragmentary sectional front elevation as seen looking in the direction of arrows 5 in Figs. 1 and 2 and showing the pumping mechanism and a portion of the well casing. Fig. 6 is. an enlarged detail view of one of the oval actuating gears. Fig. 7 is an edge view of the same. Fig. 8 is an enlarged edge view of one of the walking beam draw bars. Fig. 9 is a side view pulley 5 fast to one end of said shaft. A

driving gear pinion 6 secured to the other end of said shaft, drives a large gear 7 fast to the countershaft 8 suitably journaled in frame 1. Secured to shaft 8 are gear wheels 9, 10' and 11, equidistantly spaced from each other. Oval actuating gears 9 and 10 operate the outer walking beams A and A while gear 11 operates the intermediate walking beam B. The walking beams A and A move in unison and carry on their forward ends in pivotal engagement, vertical rods 12 and 13, respectively, which at their lower ends are connected by means of a cross yoke 14, to which is secured the outer plunger rod 15. The intermediate walking beam B. carries at its forward end in pivotal en-.

gagement vertical rod 16' which is connected to the inner plunger rod 17 the latter working within the tubular or outer plunger rod 15, as is usual in double acting plunger pumps. The oval gears operating the walk ing beams are arranged in such a manner that the outer beams A andA will move in opposite direction to walking beam B so that when the upper limit of movement of beam B is reached, beams A and A will occupy the lowest position, and as will be readily understood. 7 v 7 g g The arrangement and position of the gears operating A and A are exactly alike and it will therefore only be necessaryto describe the gears operating the beam A. Assuming that the walking beams arein the position shown in Fig. 1, it will be seen that the lower eccentric gear 9 fast on shaft versely through a longitudinal slot in beam B. The size of the gears and the position of the eccentrics therein is exactly the same as those described in-connection with beams A and A. Their position, however, in re lation to the gears described in connection with beam A is exactly the opposite, that.

is to say when the upper part of gear 11 is nearest to shaft 8 the upper part of lower gear 20 will be farthest away from said shaft causing beam B to occupy its highest position, the distance between shaft 8 and pin '21 being the inaxianum separation.

Transversely secured to the upper part of the rear frame is a stationary vertical rack 22. The teeth of rack 22 are adaptedto engage with :a segmental gear 23 formed on the rear ends of beams A, A and B; The curvature of thesegmental gear is of a shape designed to cause the forward end of the beams to reciprocate vertically in straight lines. In order to insure positive engagement of segmental gear 23 and .gear

rack 22 I have provided the following mechanism: Aretaining yoke 24 is secured to the outer ends of segmental gear 23 which encircles the gear rack 22; proximately the "center of the yoke'an 'enlargement'2'5 is made providing a slot in which a roller 26 is rotatably mounted on a pin passing transversely through-said slot.

This roller engagesa cam 27 formed in the rear. of gear rack 22. The cam is shaped in such away that when the segmental gear 23 engages the gear rack 22 in its rocking movement, andretaining yoke 24' is oscillated, the roller .26 engaging cam27 will insure positive engagement of said two gears,

22and23. In order to prevent lateral movement of the segmental gear a pair of ears 28 extending on opposite sides of enlargement 25 andengaging cam 27, are provided.

The operation of the pumping apparatus will be'easily understood from the foregoing I description. Power applied to pulley 5 in a=clockwise direction will, .through the transmission ofsgears 6 andifl causetcounterclock- At a ,point apwise rotation of shaft 8. The revolution of eccentric gears 9 and 10 to the floating gears mounted in said beamswill cause the latter to vertically reciprocate the outer beams in unison and in opposite direction from the intermediate beam so that when the outer gearsoccupy the lowest position the intermediate beam will occupy its highest position and vice versa.

Beams A, B and A are provided with pivotal draw bars 29, 30, 31pivotally mounted upon the pins which hold the actuating gears in place upon the beams. Said draw bars extend downwardly. and engage in grooves formed in a series of friction guide rollers 32, 33, 34, mounted upon the trans? verse shaft 35. Retaining springs 36, 37 and 38 are secured to a transverse shaft 39 journaled in the upper end of the frame;

said retaining springs extending down wardly and engage in openings inthe draw bars 29, 30, 31. The draw bars are provided with curved cam faces adapted .to engage rollers 40 mounted upon the actuating gears in such a manner that when said gears and beams are at the limit of upward stroke, said rollers engage the cam. faces of the draw bars and return the same to original position at, the same time assuring the engagement of the actuating gears, and said 1 springs keep the gears in engagement on the up stroke thereof.

Thesegmental gears formed upon the end of beams A, B, and A are on a radius taken from the center of the pins at the outer ends of said beams, so that when they are oscillated by the actuating. gears a continuous vertical or straight line movement is imparted to the rods 15 .and- 17.

.1 find that the oval gears as shown are more suitable for this class of pump for the reason that they impart a steady gradual upward movement and do not jerk on the reversal of the movement, and also arecon-- structed in such a manner that a quicker return movement is provided than the upward movement thereof, which is very advantageous in this case allowing a short lap at the lower extreme movement of each eccentric actuating gear, thereby causing, the valves to seat gently.

-The concentric circles shown in Fig. 10 illustrate the means of obtaining the gradual and even lift of the fluid and eliminating the pulsations caused by acrank movement.

By my improved pumping apparatus I distribute the strains and stresses usually found in pumping machinery. The bal anced arrangement of the coacting parts and the eccentric gears eliminate "disadvantages present when a crank is used for reciprocating the walking beams. Other Jadvantages will be obvious to those skilled in the art.

It is :to be understood that various changes may be made without departingv from the spirit of my invention and from the scope of the appended claims.

I claim:

1. In an apparatus for operating double acting plunger pumps, a frame, a rotating shaft journaled therein, an intermediate walking beam, a pair of outer walking beams arranged at opposite sides thereof, plunger rod connections pivoted to the forward ends of said beams, a train of eccentric oval gears operated by said shaft, one of said gears be-. ing rotatably mounted in each of said beams, the position of the centers of revolution of said gears being so arranged that said intermediate beam and said pair of outer beams vertically reciprocate in opposite directions, a rack, a segmental gear at the rear end of each of said beams engaging said rack, and means for holding said rack and said segmental gear in positive engagement.

2. In a plunger pump, a frame, a shaft journaled in said frame, a walking beam mounted to oscillate on said frame, a plunger rod connected to the forward end of said beam, a gear eccentrically mounted on said shaft, a gear eccentrically mounted on said beam and meshing with the gear on said shaft, a draw bar connected to said beam, and a roller on said shaft gear for engaging said draw bar to return said beam positively to its lower position.

3. In a plunger pump, a frame, a shaft journaled in said frame, a walking beam mounted to oscillate on said frame, a plunger rod connected to the forward end of said beam, a gear eccentrically mounted on said shaft, a gear eccentrically mounted on said beam and meshing with the gear on said shaft, a draw bar connected to said beam, a roller on said shaft gear for engaging said draw bar to return said beam positively to its lower position, a guide roller on said frame with which said draw bar engages for guiding said draw bar and a spring for maintaining said draw bar in engagement with said roller.

4:. In a plunger pump, a frame, a shaft journaled in said frame, a walking beam mounted to oscillate on said frame, a plunger rod connected to the forward end of said beam, a gear eccentrically mounted on said shaft, a gear eccentrically mounted on said beam, and meshing with the gear on said shaft, a draw bar connected to said beam, a roller on said shaft gear for engaging said draw bar to return said beam positively to its lower position, and a guide roller on said frame with which said draw bar engages for guiding said draw bar.

5. In anapparatus for operating double acting pumps, a frame, a rotating shaft journaled in said frame, a pair of outer walking beams, an intermediate walking beam located intermediate the beams of said pair of outer walking beams, plunger rod connections pivoted to the forward ends of said beams, gears eccentrically moimted on said shaft, gears eccentrically journaled on said beams and meshing with the gears on said shaft for rocking said walking beams, a draw bar connected to each of said walking beams, and a roller on each of the gears on said shaft for engaging said draw bars to return said walking beams positively to their lower position.

6. In an apparatus for operating double acting pumps, a frame, a rotating shaft journaled in said frame, a pair of outer walking beams, an intermediate walking beam located intermediate the beams of said pair of outer walking beams, plunger rod connections pivoted to the forward ends of said beams, gears eccentrically mounted on said shaft, gears eccentrically journaled on said beams and meshing with the gears on said shaft for rocking said walking beams, a draw bar connected to each of said walking beams, a roller on each of the gears on said shaft for engaging said draw bars to return said walking beams positively to their lower position, guides for said draw bars and means for maintaining said bars in engagement with said guides.

JOHN J. BECKER.

Witnesses:

C. J. WILLIAMS, JUSTINE OTTOFY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of. Patents,

Washington, D. C. 

